公开(公告)号：WO2019040317A1

公开(公告)日：2019-02-28

申请号：PCT/US2018/046629

申请日：2018-08-14

申请人： FARO TECHNOLOGIES, INC.

发明人： KAUFMAN, Steven Paul ,  METTINEN, Kari J. ,  MOHAZZAB, Masoud ,  SAVIKOVSKY, Arkady ,  STAVE, Joel H.

IPC分类号： G01S17/42 ,  G01S17/66 ,  G01S17/89 ,  G01S7/48 ,  G01S7/481 ,  G01S7/491 ,  G01C15/00

CPC分类号： G01S7/4814 ,  G01C15/002 ,  G01S7/4817 ,  G01S7/4868 ,  G01S17/105 ,  G01S17/42 ,  G01S17/89 ,  G02B27/108 ,  G02F1/113 ,  G02F2201/02 ,  G02F2201/34

摘要： A laser radar projection system is provided. The system includes a laser projector that projects a light beam. A beam splitter is arranged to receive the light beam from the projector and divides the light beam into a signal light beam and a reference light beam. A steering system changes the direction of the signal light beam and scans the light beam over at least a portion of the surface. An optical signal detector is arranged to receive a feedback light beam and the reference light beam. The optical signal detector generates a feedback signal in response to the feedback light beam and a reference signal in response to the reference light beam. One or more processors determine the distance to one or more points on the at least a portion of the surface based at least in part on the feedback signal and the reference signal.